Improvement in grain-cleaners



simpsonl & Hmmm.`

Grain Cieaner.

Patented oct. 14. 1862.

[477W: ss is "wir UNITED STATES PATENT OEEICE.

JOHN SIMPSON AND WILLIAM HAYDEN, TEOUMSEH, MICHIGAN.

IMPRoyEMENT IN GRAIN-CLEANERS.

Specification forming part of Letters Patent No, 36,676, dated October14, 1862.

To a/ZZ whom it may concern:

Be it knownthat we, JOHN SIMPSON and WILLIAM HAYDEN, of Tecumseh, in thecounty of Lenawee `and State of Michigan, have invented newand usefulImprovements on Machines for Cleaning and Smutting Grain Preparatory forGrinding and for Cleaning and Hulling Buckwheat; and We do herebydeclare that the following is a full, clear, and exact description ofthe construction and operation of the same, reference being had to theannexed drawings, making apart of this specification.

Figure 1 is a side elevation of ourinvention. Fig. 2 isa verticalsection of the same, taken through the shafts C and D. Fig. 3 is a planof the same. Fig. 4 is a horizontal lower section, taken through theline a: y. Fig. 5 is a detached view of the lower surface of T, see Fig.2, showing arrangement of beaters at-` tached thereto. Y.

Like letters in the several parts indicate like parts of the machine.The pink tints in the sectional drawings indicate those parts cut by theplane that may be made of Wood.

The object of this invention is to obtain a machine that may beconveniently attached to the curb of a millstone which will scour andclean the grain and prevent the accumulation of moisture, &c.

To enable those skilled in the art to make and use our invention,we willdescribe its construction and operation.

Y represents a part of the curb.

The machine is supported by four pedestals which rest in mortises in thetop of the curb.

D is that part of the spindle which would come above the top of thestone.

G and H are two cylinders. fan, NV, and in H is the scouring part of ourinvention. M and Qare two horizontal plane-pieces. Q forms the bottom ofcylinder G and H, and M the top of cylinder G. There is a round openingin M the size 0f cylinder H, in which t-he cylinder is inserted, the topof the cylinder being flush with the upper surface of M.

i is a box on M, which incloses an air-pas sage from a round opening inM,directly over the center of the fan W,to a rectangular opening overthe box a. Box c incloses an air-passage to a rectangular opening in Q.There is a register, L, in theY top of box '13, by means of G contains aI `which air may be admitted to the fan NV, thus governing thev draft inthe air-passages.

B is a horizontal bar supported by two columns, f g. The shaft of thefan C and the spindle D have bearings in the bar B.

A is'a belt, which passes around the pulley h on the spindle, and thepulley c' on the shaft of the fan.

The funnel F, attached to bar B, eollars,le ver E, and saucer hconstitute what is commonly used and known as a stillfeeder. 7 The bar Eis pivoted at N and passes through a slot in the Vcolumns g.

I? is the head of the cylinder H and is at tached to M. It has afunnel-shaped opening at its center, the upper orifice of which issurrounded by a metallic funnel, K.

R is an adjustable scourer,pendent from the head P by three set-screws,e c e, by which it is held in position, and may be raised or lowered toadapt it to the different kinds of grain. It has a cylindrical openingat the center, and its lowerxsurface is covered with a plate ofsheet-iron, n., indented in its upper surface, producing a rough lowersurface.

T is a scourer attached to the spindle D, the plate m of which has arough upper surface like the lower surface of a, and has one circulateand a series of radial indentations. The diameter of T is less than thediameter of the cylinder, and it has attached to its lower surface aseries of beaters, arranged similarly to the furrows of a I nillstone,and projecting beyond the scourer nearly to the cylinder.

0 is an iron plate, made rough in the manner above described. Throughthe plate o and through Q is a cylindrical opening, in which is insertedthe cylindrical part of a funnel, V.4

X is an inverted truncated cone..

Y is a funnel, the sides of which are nearly parallel with the sides ofthe cone X.

b is a box inclosing an air-passage from the rectangular opening in Qtothe funnel Y. The inside of the box embraces one-half thecircumfereneeof the funnel, and that part ofthe funnel which wouldobstruct the air-passage is cutaway. The descending arrows from funnel Findicate the course of the grain. The ascending arrows indicate theaircurrents `from the funnel Y to the fan NV. There is an opening in thecylinder G into the spout Z.

The operation of this machine is as follows: When not attached to thecurb, motion is communicated tothe machine by means of a belt and anextra pulley on shaft D. Vhen attached to the curb, D is the spindle ofthe stone, and receives its motion from the bail. It is imparted .to thefan by means of pulleys h and i and belt A. The grain enters funnel E,passes down between the shaft and the funnel into the saucer K. Here theamount dclivered to the scourer is regulated by raising and lowering thecollars by means of the lever E, thus obstructing or permitting the freedischarge of the grain from the saucer. rlhe graini's thrown outcentrifugally from the saucer, passes down between the saucer and fuirnel K, through the aperture in l) and R onto the scourcr T. The rapidmotion of T causes the grain to work toward the circumference ,betweenthe rough plates m and a, m being in rapid motion and a stationary, andthe grain is thoroughly scoured. Reaching the circumference of m, itdrops on the rough plate o, Where it is caught by the beaters t t t anddrawn over the plate o to the funnel V, through which it falls on thecone X, which, being .in rapid motion, causes the grain to be thrown outcentrifugally, when, meeting the current of air produced by the fan7 itis freed from all refuse matter and drops into the eye of the stone.rlhe cone X, obstructing the funnel, causes the air to enter the funnelfrom all directions over the top of the stone, and from the eye, thuspreventing the accumulation of moisture about the curb. All refusematter is carried by the air-currents through the airby the current ofwind, exposing the largest surface both oi' the grain and impurities tothe action of the current of the wind.

2. The combination ofthe several parts, as above described, in themanner and for the purpose iudicated,in connection with the curbspindleand stones of an ordinary louringmill, as well as attached to othermachinery,

like an ordinary smutter.

3. The doublesurface seourer indented from the opposite surface.

JOHN SIMPSON. XVM. 'HAYDEN Witnesses:

C. A. STAoY, S. C. STAOY.

